Import-Module ACLReportTools
$WorkDir="$env:LOCALAPPDATA\ps-aclreport"

function createBaselineReport($Computer, $Share){
    $ShareName="${Computer}-${Share}"
    $Date=(Get-Date).ToString("yyyyMMddHHmmss")
    $BaselineName="Baseline_${ShareName}_${Date}"
    New-ACLShareReport -ComputerName $Computer -Include $Share -IncludeInherited | Export-ACLReport -Path "${Workdir}\${BaselineName}.acl" -Force 
}

function pruneBaselineReports(){
    $reg="([a-zA-Z]+_.*)_\d{4}\d{2}\d{2}\d{2}\d{2}\d{2}\.acl"
    $ReportGroups=(Get-Childitem -Path $WorkDir) | Sort-Object -Property Name | Where-Object {$_.name -match "([a-zA-Z]+_.*)_\d{4}\d{2}\d{2}\d{2}\d{2}\d{2}\.acl"}  | Group-Object -Property {$Matches[1]}
    For ($i=0; $i -lt $ReportGroups.Length; $i++){
        For ($j=0; $j -lt $ReportGroups[$i].Count; $j++){
            if ($j -ne 0 -And $j -ne ($ReportGroups[$i].Count-1)){
                remove-item $ReportGroups[$i].Group[$j].FullName -Force
            }
        }
    }
}
pruneBaselineReports